Oxygen consumption prediction models for individual and combination materials handling tasks.
An experiment was conducted to develop models to predict oxygen consumption of males and females engaged in common materials handling tasks including lifting, lowering, pushing, pulling, (de)palletising and combination tasks involving lifting or lowering a box and carrying it a set distance and lifting or lowering it to the destination. Nineteen male and 19 female subjects participated in the study. A psychophysical approach was used to set load limits for individual subjects for the oxygen consumption protocol. The 8398 oxygen consumption values collected were entered into the initial regression analyses and 168 potential outliers were removed before the final models were run. In addition to relevant task variables, body weight was a significant predictor variable in all models. The r(2) values for the final models ranged from 0.54 to 0.82 and the root mean square errors ranged from 90.2 ml to 294.8 ml.
Dempsey
Patrick G
PG
Liberty Mutual Research Institute for Safety, Center for Safety Research, Hopkinton, MA, USA. patrick.dempsey@libertymutual.com
Ciriello
Vincent M
VM
Maikala
Rammohan V
RV
O'Brien
Niall V
NV
D000222:Adaptation, Physiological; D000328:Adult; D001835:Body Weight; D005260:Female; D006801:Humans; D017770:Lifting; D008297:Male; D008960:Models, Psychological; D015233:Models, Statistical; D008962:Models, Theoretical; D009119:Muscle Contraction / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D010101:Oxygen Consumption; D011187:Posture / Q000502:physiology*; D012044:Regression Analysis; D013647:Task Performance and Analysis; D016474:Weight-Bearing